Turbocharger Vacuum Diaphragm, Checking: Procedure

-- Remove the engine cover, refer to ENGINE COVER .

-- Connect the Hand Vacuum Pump VAS 6213 to the vacuum diaphragm -arrow-.

Fig 1: Connecting Hand Vacuum Pump VAS 6213 To Vacuum Diaphragm

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Set the slide ring -1- on the Hand Vacuum Pump VAS 6213 to position -B- for "pressure".

Fig 2: Adjusting Hand Vacuum Pump Slide Ring

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

CAUTION:

The pressure must not exceed 750 mbar (10.87 psi). If the pressure is exceeded, the vacuum diaphragm can be damaged.

-- Operate the Hand Vacuum Pump VAS 6213 several times and observe the rods.

The linkage -A- must move approximately 300 mbar (4.35 psi) and be at approximately 700 mbar (10.15 psi) at the end position.

Fig 3: Identifying Linkage Movement

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Actuator lift is approximately 10 mm (0.39 in).

NOTE:

If pressure cannot be raised using the Hand Vacuum Pump VAS 6213 or the pressure drops immediately, check the Hand Vacuum Pump VAS 6213 and connecting hoses for leaks. If no malfunction can be found: Replace the vacuum diaphragm, refer to TURBOCHARGER VACUUM DIAPHRAGM .